I am trying to install Team Test on a Windows Server 2003 SP1 system that I
have already successfully installed TFS Build on. Whenever I try to launch
the setup.exe I get an error message saying:

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Error
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Unable to load sitsetup.dll. Setup cannot continue.
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OK  
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I have copied the installation files from the CD to a network share, and
then directly to the hard drive of the target system and am attempting to run
setup directly from the local hard drive.

Is there something I am doing wrong here?

Thanks,
Chris